The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Single-Step Synthesis to Control the Photoluminescence Quantum Yield and Size Dispersion of CdSe Nanocrystals
Open accessAbstract
A comprehensive investigation is presented on the factors governing the photoluminescence (PL) quantum yields (QYs) and size dispersion of colloidal CdSe nanocrystals. The temporal evolution of the ensemble PL properties (absorption and luminescence spectra, QYs and lifetimes) during growth at different temperatures (170−310 °C) and different Cd:Se ratios was followed for several hours (2−6 h). The QY values increase during the growth to a maximum and, after a variable time interval (from minutes to hours, depending on the growth temperature), decrease gradually. Low QYs are due to poor passivation, surface disorder, and surface degradation, which arise at different stages of the growth. High QYs can be achieved and maintained only under an ideal combination of growth temperature, solvent composition, and Cd:Se ratio, which leads to an optimum surface. The overgrowth of a fresh surface layer restores high QYs to CdSe nanocrystals with decreased efficiencies because of surface degradation. The insight gained in this investigation enabled us to achieve a high degree of reproducibility and control over the emission color (green to red), bandwidth (90 meV), lifetimes (30 ns), and quantum yields (50−85%) of colloidal CdSe nanocrystals without any postpreparative treatment.
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Cites
Shape control of CdSe nanocrystals
Peng, X., Manna, L., Yang, W., Wickham, J., Scher, E., Kadavanich, A., & Alivisatos, A. P. (2000) · Nature · doi:10.1038/35003535 · Cited by 4,487
Dabbousi, B. O., Rodriguez-Viejo, J., Mikulec, F. V., Heine, J. R., Mattoussi, H., Ober, R., Jensen, K. F., & Bawendi, M. G. (1997) · The Journal of Physical Chemistry B · doi:10.1021/jp971091y · Cited by 4,229
Perspectives on the Physical Chemistry of Semiconductor Nanocrystals
Alivisatos, A. P. (1996) · The Journal of Physical Chemistry · doi:10.1021/jp9535506 · Cited by 3,595
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Bera, D., Qian, L., Tseng, T.-K., & Holloway, P. H. (2010) · Materials · doi:10.3390/ma3042260 · Cited by 1,365
Anderson, N. C., Hendricks, M. P., Choi, J. J., & Owen, J. S. (2013) · Journal of the American Chemical Society · doi:10.1021/ja4086758 · Cited by 874
de Mello Donegá, C., Liljeroth, P., & Vanmaekelbergh, D. (2005) · Small · doi:10.1002/smll.200500239 · Cited by 511
Self-citationMekis, I., Talapin, D. V., Kornowski, A., Haase, M., & Weller, H. (2003) · The Journal of Physical Chemistry B · doi:10.1021/jp0278364 · Cited by 375
Metadata
- Authors
- de Mello Donegá, C., Hickey, S. G., Wuister, S. F., Vanmaekelbergh, D., & Meijerink, A.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2002-12-12
- Volume
- 107
- Issue
- 2
- Pages
- 489-496
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2029992778
- Cited by
- 353
- References
- 3
- FWCI
- 11.00
- Type
- journal article
- Language
- en
- Open access
- green
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- de Mello Donegá, C., Hickey, S. G., Wuister, S. F., Vanmaekelbergh, D., & Meijerink, A. (2003). Single-Step Synthesis to Control the Photoluminescence Quantum Yield and Size Dispersion of CdSe Nanocrystals. The Journal of Physical Chemistry B. https://doi.org/10.1021/jp027160c
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